// Licensed to the Apache Software Foundation (ASF) under one

// or more contributor license agreements.  See the NOTICE file

// distributed with this work for additional information

// regarding copyright ownership.  The ASF licenses this file

// to you under the Apache License, Version 2.0 (the

// "License"); you may not use this file except in compliance

// with the License.  You may obtain a copy of the License at

//

//   http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing,

// software distributed under the License is distributed on an

// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

// KIND, either express or implied.  See the License for the

// specific language governing permissions and limitations

// under the License.

// This file is copied from

// https://github.com/apache/impala/blob/branch-2.9.0/be/src/runtime/descriptors.h

// and modified by Doris

#pragma once

#include <gen_cpp/Descriptors_types.h>

#include <gen_cpp/Types_types.h>

#include <glog/logging.h>

#include <google/protobuf/stubs/port.h>

#include <stdint.h>

#include <ostream>

#include <string>

#include <unordered_map>

#include <utility>

#include <vector>

#include "common/compiler_util.h" // IWYU pragma: keep

#include "common/global_types.h"

#include "common/status.h"

#include "runtime/define_primitive_type.h"

#include "runtime/types.h"

#include "vec/data_types/data_type.h"

namespace google::protobuf {

template <typename Element>

class RepeatedField;

} // namespace google::protobuf

namespace doris {

class ObjectPool;

class PTupleDescriptor;

class PSlotDescriptor;

class SlotDescriptor {

public:

    // virtual ~SlotDescriptor() {};

    SlotId id() const { return _id; }

    const TypeDescriptor& type() const { return _type; }

    TupleId parent() const { return _parent; }

    // Returns the column index of this slot, including partition keys.

    // (e.g., col_pos - num_partition_keys = the table column this slot corresponds to)

    int col_pos() const { return _col_pos; }

    // Returns the field index in the generated llvm struct for this slot's tuple

    int field_idx() const { return _field_idx; }

    bool is_materialized() const { return _is_materialized; }

    bool is_nullable() const { return _is_nullable; }

    const std::string& col_name() const { return _col_name; }

    const std::string& col_name_lower_case() const { return _col_name_lower_case; }

    void to_protobuf(PSlotDescriptor* pslot) const;

    std::string debug_string() const;

    vectorized::MutableColumnPtr get_empty_mutable_column() const;

    doris::vectorized::DataTypePtr get_data_type_ptr() const;

    int32_t col_unique_id() const { return _col_unique_id; }

    bool is_key() const { return _is_key; }

    bool need_materialize() const { return _need_materialize; }

    const std::vector<std::string>& column_paths() const { return _column_paths; };

    bool is_auto_increment() const { return _is_auto_increment; }

    const std::string& col_default_value() const { return _col_default_value; }

    PrimitiveType col_type() const { return _col_type; }

private:

    friend class DescriptorTbl;

    friend class TupleDescriptor;

    friend class SchemaScanner;

    friend class OlapTableSchemaParam;

    friend class PInternalServiceImpl;

    friend class Tablet;

    friend class TabletSchema;

    const SlotId _id;

    const TypeDescriptor _type;

    const TupleId _parent;

    const int _col_pos;

    bool _is_nullable;

    const std::string _col_name;

    const std::string _col_name_lower_case;

    const int32_t _col_unique_id;

    const PrimitiveType _col_type;

    // the idx of the slot in the tuple descriptor (0-based).

    // this is provided by the FE

    const int _slot_idx;

    // the idx of the slot in the llvm codegen'd tuple struct

    // this is set by TupleDescriptor during codegen and takes into account

    // leading null bytes.

    int _field_idx;

    const bool _is_materialized;

    const bool _is_key;

    const bool _need_materialize;

    const std::vector<std::string> _column_paths;

    const bool _is_auto_increment;

    const std::string _col_default_value;

    SlotDescriptor(const TSlotDescriptor& tdesc);

    SlotDescriptor(const PSlotDescriptor& pdesc);

};

// Base class for table descriptors.

class TableDescriptor {

public:

    TableDescriptor(const TTableDescriptor& tdesc);

    virtual ~TableDescriptor() = default;

    int num_cols() const { return _num_cols; }

    int num_clustering_cols() const { return _num_clustering_cols; }

    virtual std::string debug_string() const;

    // The first _num_clustering_cols columns by position are clustering

    // columns.

    bool is_clustering_col(const SlotDescriptor* slot_desc) const {

        return slot_desc->col_pos() < _num_clustering_cols;

    }

    ::doris::TTableType::type table_type() const { return _table_type; }

    const std::string& name() const { return _name; }

    const std::string& database() const { return _database; }

    int64_t table_id() const { return _table_id; }

private:

    ::doris::TTableType::type _table_type;

    std::string _name;

    std::string _database;

    int64_t _table_id;

    int _num_cols;

    int _num_clustering_cols;

};

class OlapTableDescriptor : public TableDescriptor {

public:

    OlapTableDescriptor(const TTableDescriptor& tdesc);

    std::string debug_string() const override;

};

class SchemaTableDescriptor : public TableDescriptor {

public:

    SchemaTableDescriptor(const TTableDescriptor& tdesc);

    ~SchemaTableDescriptor() override;

    std::string debug_string() const override;

    TSchemaTableType::type schema_table_type() const { return _schema_table_type; }

private:

    TSchemaTableType::type _schema_table_type;

};

class BrokerTableDescriptor : public TableDescriptor {

public:

    BrokerTableDescriptor(const TTableDescriptor& tdesc);

    ~BrokerTableDescriptor() override;

    std::string debug_string() const override;

private:

};

class HiveTableDescriptor : public TableDescriptor {

public:

    HiveTableDescriptor(const TTableDescriptor& tdesc);

    ~HiveTableDescriptor() override;

    std::string debug_string() const override;

private:

};

class IcebergTableDescriptor : public TableDescriptor {

public:

    IcebergTableDescriptor(const TTableDescriptor& tdesc);

    ~IcebergTableDescriptor() override;

    std::string debug_string() const override;

private:

};

class MaxComputeTableDescriptor : public TableDescriptor {

public:

    MaxComputeTableDescriptor(const TTableDescriptor& tdesc);

    ~MaxComputeTableDescriptor() override;

    std::string debug_string() const override;

    std::string region() const { return _region; }

    std::string project() const { return _project; }

    std::string table() const { return _table; }

    std::string odps_url() const { return _odps_url; }

    std::string tunnel_url() const { return _tunnel_url; }

    std::string access_key() const { return _access_key; }

    std::string secret_key() const { return _secret_key; }

    std::string public_access() const { return _public_access; }

    std::string endpoint() const { return _endpoint; }

    std::string quota() const { return _quota; }

    Status init_status() const { return _init_status; }

private:

    std::string _region; //deprecated

    std::string _project;

    std::string _table;

    std::string _odps_url;   //deprecated

    std::string _tunnel_url; //deprecated

    std::string _access_key;

    std::string _secret_key;

    std::string _public_access; //deprecated

    std::string _endpoint;

    std::string _quota;

    Status _init_status = Status::OK();

};

class EsTableDescriptor : public TableDescriptor {

public:

    EsTableDescriptor(const TTableDescriptor& tdesc);

    ~EsTableDescriptor() override;

    std::string debug_string() const override;

private:

};

class MySQLTableDescriptor : public TableDescriptor {

public:

    MySQLTableDescriptor(const TTableDescriptor& tdesc);

    std::string debug_string() const override;

    std::string mysql_db() const { return _mysql_db; }

    std::string mysql_table() const { return _mysql_table; }

    std::string host() const { return _host; }

    std::string port() const { return _port; }

    std::string user() const { return _user; }

    std::string passwd() const { return _passwd; }

    std::string charset() const { return _charset; }

private:

    std::string _mysql_db;

    std::string _mysql_table;

    std::string _host;

    std::string _port;

    std::string _user;

    std::string _passwd;

    std::string _charset;

};

class ODBCTableDescriptor : public TableDescriptor {

public:

    ODBCTableDescriptor(const TTableDescriptor& tdesc);

    std::string debug_string() const override;

    std::string db() const { return _db; }

    std::string table() const { return _table; }

    std::string host() const { return _host; }

    std::string port() const { return _port; }

    std::string user() const { return _user; }

    std::string passwd() const { return _passwd; }

    std::string driver() const { return _driver; }

    TOdbcTableType::type type() const { return _type; }

private:

    std::string _db;

    std::string _table;

    std::string _host;

    std::string _port;

    std::string _user;

    std::string _passwd;

    std::string _driver;

    TOdbcTableType::type _type;

};

class JdbcTableDescriptor : public TableDescriptor {

public:

    JdbcTableDescriptor(const TTableDescriptor& tdesc);

    std::string debug_string() const override;

    int64_t jdbc_catalog_id() const { return _jdbc_catalog_id; }

    const std::string& jdbc_resource_name() const { return _jdbc_resource_name; }

    const std::string& jdbc_driver_url() const { return _jdbc_driver_url; }

    const std::string& jdbc_driver_class() const { return _jdbc_driver_class; }

    const std::string& jdbc_driver_checksum() const { return _jdbc_driver_checksum; }

    const std::string& jdbc_url() const { return _jdbc_url; }

    const std::string& jdbc_table_name() const { return _jdbc_table_name; }

    const std::string& jdbc_user() const { return _jdbc_user; }

    const std::string& jdbc_passwd() const { return _jdbc_passwd; }

    int32_t connection_pool_min_size() const { return _connection_pool_min_size; }

    int32_t connection_pool_max_size() const { return _connection_pool_max_size; }

    int32_t connection_pool_max_wait_time() const { return _connection_pool_max_wait_time; }

    int32_t connection_pool_max_life_time() const { return _connection_pool_max_life_time; }

    bool connection_pool_keep_alive() const { return _connection_pool_keep_alive; }

private:

    int64_t _jdbc_catalog_id;

    std::string _jdbc_resource_name;

    std::string _jdbc_driver_url;

    std::string _jdbc_driver_class;

    std::string _jdbc_driver_checksum;

    std::string _jdbc_url;

    std::string _jdbc_table_name;

    std::string _jdbc_user;

    std::string _jdbc_passwd;

    int32_t _connection_pool_min_size;

    int32_t _connection_pool_max_size;

    int32_t _connection_pool_max_wait_time;

    int32_t _connection_pool_max_life_time;

    bool _connection_pool_keep_alive;

};

class TupleDescriptor {

public:

    TupleDescriptor(TupleDescriptor&&) = delete;

    void operator=(const TupleDescriptor&) = delete;

    ~TupleDescriptor() {

        if (_own_slots) {

            for (SlotDescriptor* slot : _slots) {

                delete slot;

            }

        }

    }

    int num_materialized_slots() const { return _num_materialized_slots; }

    const std::vector<SlotDescriptor*>& slots() const { return _slots; }

    bool has_varlen_slots() const { return _has_varlen_slots; }

    const TableDescriptor* table_desc() const { return _table_desc; }

    TupleId id() const { return _id; }

    std::string debug_string() const;

    void to_protobuf(PTupleDescriptor* ptuple) const;

private:

    friend class DescriptorTbl;

    friend class SchemaScanner;

    friend class OlapTableSchemaParam;

    friend class PInternalServiceImpl;

    friend class TabletSchema;

    const TupleId _id;

    TableDescriptor* _table_desc = nullptr;

    int _num_materialized_slots;

    std::vector<SlotDescriptor*> _slots; // contains all slots

    // Provide quick way to check if there are variable length slots.

    // True if _string_slots or _collection_slots have entries.

    bool _has_varlen_slots;

    bool _own_slots = false;

    TupleDescriptor(const TTupleDescriptor& tdesc, bool own_slot = false);

    TupleDescriptor(const PTupleDescriptor& tdesc, bool own_slot = false);

    void add_slot(SlotDescriptor* slot);

};

class DescriptorTbl {

public:

    // Creates a descriptor tbl within 'pool' from thrift_tbl and returns it via 'tbl'.

    // Returns OK on success, otherwise error (in which case 'tbl' will be unset).

    static Status create(ObjectPool* pool, const TDescriptorTable& thrift_tbl, DescriptorTbl** tbl);

    TableDescriptor* get_table_descriptor(TableId id) const;

    TupleDescriptor* get_tuple_descriptor(TupleId id) const;

    SlotDescriptor* get_slot_descriptor(SlotId id) const;

    const std::vector<TTupleId>& get_row_tuples() const { return _row_tuples; }

    // return all registered tuple descriptors

    std::vector<TupleDescriptor*> get_tuple_descs() const {

        std::vector<TupleDescriptor*> descs;

        for (auto it : _tuple_desc_map) {

            descs.push_back(it.second);

        }

        return descs;

    }

    std::string debug_string() const;

private:

    using TableDescriptorMap = std::unordered_map<TableId, TableDescriptor*>;

    using TupleDescriptorMap = std::unordered_map<TupleId, TupleDescriptor*>;

    using SlotDescriptorMap = std::unordered_map<SlotId, SlotDescriptor*>;

    TableDescriptorMap _tbl_desc_map;

    TupleDescriptorMap _tuple_desc_map;

    SlotDescriptorMap _slot_desc_map;

    std::vector<TTupleId> _row_tuples;

    DescriptorTbl() = default;

};

#define RETURN_IF_INVALID_TUPLE_IDX(tuple_id, tuple_idx)                                         \

    do {                                                                                         \

        if (UNLIKELY(RowDescriptor::INVALID_IDX == tuple_idx)) {                                 \

            return Status::InternalError("failed to get tuple idx with tuple id: {}", tuple_id); \

        }                                                                                        \

    } while (false)

// Records positions of tuples within row produced by ExecNode.

// TODO: this needs to differentiate between tuples contained in row

// and tuples produced by ExecNode (parallel to PlanNode.rowTupleIds and

// PlanNode.tupleIds); right now, we conflate the two (and distinguish based on

// context; for instance, HdfsScanNode uses these tids to create row batches, ie, the

// first case, whereas TopNNode uses these tids to copy output rows, ie, the second

// case)

class RowDescriptor {

public:

    RowDescriptor(const DescriptorTbl& desc_tbl, const std::vector<TTupleId>& row_tuples,

                  const std::vector<bool>& nullable_tuples);

    // standard copy c'tor, made explicit here

    RowDescriptor(const RowDescriptor& desc)

            : _tuple_desc_map(desc._tuple_desc_map),

              _tuple_idx_nullable_map(desc._tuple_idx_nullable_map),

              _tuple_idx_map(desc._tuple_idx_map),

              _has_varlen_slots(desc._has_varlen_slots) {

        auto it = desc._tuple_desc_map.begin();

        for (; it != desc._tuple_desc_map.end(); ++it) {

            _num_materialized_slots += (*it)->num_materialized_slots();

            _num_slots += (*it)->slots().size();

        }

    }

    RowDescriptor(TupleDescriptor* tuple_desc, bool is_nullable);

    RowDescriptor(const RowDescriptor& lhs_row_desc, const RowDescriptor& rhs_row_desc);

    // dummy descriptor, needed for the JNI EvalPredicate() function

    RowDescriptor() = default;

    int num_materialized_slots() const { return _num_materialized_slots; }

    int num_slots() const { return _num_slots; }

    static const int INVALID_IDX;

    // Returns INVALID_IDX if id not part of this row.

    int get_tuple_idx(TupleId id) const;

    // Return true if any Tuple has variable length slots.

    bool has_varlen_slots() const { return _has_varlen_slots; }

    // Return descriptors for all tuples in this row, in order of appearance.

    const std::vector<TupleDescriptor*>& tuple_descriptors() const { return _tuple_desc_map; }

    // Populate row_tuple_ids with our ids.

    void to_thrift(std::vector<TTupleId>* row_tuple_ids);

    void to_protobuf(google::protobuf::RepeatedField<google::protobuf::int32>* row_tuple_ids) const;

    // Return true if the tuple ids of this descriptor are a prefix

    // of the tuple ids of other_desc.

    bool is_prefix_of(const RowDescriptor& other_desc) const;

    // Return true if the tuple ids of this descriptor match tuple ids of other desc.

    bool equals(const RowDescriptor& other_desc) const;

    std::string debug_string() const;

    int get_column_id(int slot_id, bool force_materialize_slot = false) const;

private:

    // Initializes tupleIdxMap during c'tor using the _tuple_desc_map.

    void init_tuple_idx_map();

    // Initializes _has_varlen_slots during c'tor using the _tuple_desc_map.

    void init_has_varlen_slots();

    // map from position of tuple w/in row to its descriptor

    std::vector<TupleDescriptor*> _tuple_desc_map;

    // _tuple_idx_nullable_map[i] is true if tuple i can be null

    std::vector<bool> _tuple_idx_nullable_map;

    // map from TupleId to position of tuple w/in row

    std::vector<int> _tuple_idx_map;

    // Provide quick way to check if there are variable length slots.

    bool _has_varlen_slots = false;

    int _num_materialized_slots = 0;

    int _num_slots = 0;

};

} // namespace doris